The messages are typically processed byFORM ENTRY in PROGRAM RSNAST00.If we are dealing with printing or faxing andFORM EDI_PROCESSING in PROGRAM RSNASTED.If we are dealing with IDocsFORM ALE_PROCESSING in PROGRAM RSNASTED.
If we are dealing with ALE,The following piece of code does principally the same thing as RSNAST00 does and makes full use of all customizing settings for message handling.
TABLES: NAST.
SELECT * FROM NAST ...
PERFORM einzelnachricht IN PROGRAM RSNAST00
The processing routine for the respective media and message is customized in the table TNAPR. This table records the name of a FORM routine, which processes the message for the chosen media and the name of an ABAP where this FORM is found.The ABAP RSNAST00 is the standard ABAP, which is used to collect unprocessed NAST message and to execute the assigned action.
RSNAST00 can be executed as a collector batch run, that eventually looks for unprocessed IDocs. The usual way of doing that is to define a batch-run job with transaction SM37. This job has to be set for periodic processing and start a program that triggers the IDoc re-sending.
Cave! RSNAST00 will only look for IDocs which are set to NAST-VSZTP = '1' or '2' (Time of processing). VSZPT = '3' or '4' is ignored by RSNAST00.
Start RSNAST00 in the foreground first and find the parameters that match your required selection criteria. Save them as a VARIANT and then define the periodic batch job using the variant.If RSNAST00 does not meet 100% your needs you can create an own program similar to RSNAST00. The only requirement for this program are two steps:
* Read the NAST entry to process into structure NAST tables nast.
data: subrc like sy-subrc.....
select from NAST where .......
* then call FORM einzelnachricht(rsnast00) to process the record PERFORM einzelnachricht(rsnast00) USING subrc.
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